The reason why water is backing up in the tub when you flush your toilet is simple.
Septic tank backing up into bathtub.
Blocked drain or drain backup diagnosis.
Instead it flows back up the pipes and comes out at the lowest point usually the shower drain.
If you know u pumped out your septic tank as scheduled then there has to be another cause for the problem.
If is slow draining then your septic system is backed up.
When your sewer line is clogged the water can t go down the drain.
When a building drain or main sewer line is clogged or slow or when there is a septic system backup it s important to determine where.
When you run water in the bathroom sink the toilet bubbles and gurgles.
Now that that s out of the way the more important issue is what to do about it and that might depend on whether your waste pipes empty into a municipal sewage system or into a septic system.
Cleaning out the drain or applying a natural drain cleaner can help.
The most important step you can take is to prevent a septic tank backup in the first place.
If a blockage in the main sewer line is the cause of water backing up into the bathtub or other related plumbing issues or even if you simply suspect it might be the cause the best thing you can do is to call a reputable plumber to come to assess the problem as soon as possible.
In many cases hair clogs the tub s drain which in turn causes water to back up.
Inside the house while slow drains or black smelly waste water backing up in the bathtub and toilets are obvious signs of plumbing problems it isn t always a simple clog.
Make sure your septic tank is always biologically active.
If you don t have a basement septic backups are usually first seen in the bathtub closest to the septic tank.
Never put garbage or any foreign objects into the system.
The sewer line is blocked.
Don t use antibacterial soaps and cleaners that drain to the tank.
Clogged baffle or pipe.
Unfortunately and depending on which drain or section of piping in the house has become clogged backups into the bathtub could result.
If a clog occurs in one of the pipes leading into or out of your septic tank the whole system will stop moving and the wastewater will have nowhere to go.
Caused by drain blockage versus caused by septic system failure.
Here we explain how to determine if a blocked or slow drain is due to a problem inside the building or outside in a sewer line or failing septic system.
This is a common cause for water to back up when you try to use your drains.
Here are some preventive suggestions.
When you flush the toilet water backs up into or comes up in the tub or shower.
Septic tank backup prevention.